I have been trying to add devices using manual option to IPSLA using SNMP v3 with no luck.
The same credentials that I have created for RW and RO access works fine in NPM, NCM, SolarWinds Workspace and Toolset Mib Browser. IPSLA errors out with DEvice is not responding. It is down, busy or SNMP read credentials are not valid. I confirm credentials and run Validate SNMP with returns Test Failed.